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Peanut butter mug cake is moist, tender & ready in under 5 minutes.
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4.41 from 15 votes

Peanut Butter Mug Cake

This easy peanut butter mug cake is fudgy, moist, made in the microwave, and ready in under 5 minutes. Add in some chocolate chips or an extra drizzle of peanut butter on top for the most delicious mug cake recipe.
Prep Time2 minutes
Cook Time1 minute
Total Time5 minutes
Course: Dessert
Cuisine: American
Keyword: Mug Cake, Peanut Butter Mug Cake
Servings: 1 mug cake
Author: Fiona Dowling

Ingredients

  • 1 1/2 tablespoons oil
  • 2 tablespoons peanut butter
  • 2 tablespoons sugar
  • 1 large egg yolk or 1 extra tablespoon milk
  • 2 tablespoons flour
  • 1/4 teaspoon baking powder
  • 2 tablespoons milk
  • 1 tablespoon chocolate chips

Instructions

  • Add the oil, peanut butter, sugar & egg yolk to a large mug. Whisk together until smooth.
  • Whisk in the flour and baking powder.
  • Stir in the milk and optional chocolate chips
  • Microwave for 1 minute and 30 seconds or until the top looks set.
  • Let stand for 1-2 minutes to cool slightly, then top with ice cream or a drizzle of peanut butter.